Organic vapor sensing behavior of polycarbonate/polystyrene/multi-walled carbon nanotube blend composites with different microstructures

dc.bibliographicCitation.firstPage107897eng
dc.bibliographicCitation.volume179eng
dc.contributor.authorLi, Yilong
dc.contributor.authorPionteck, Jürgen
dc.contributor.authorPötschke, Petra
dc.contributor.authorVoit, Brigitte
dc.date.accessioned2022-08-18T08:01:02Z
dc.date.available2022-08-18T08:01:02Z
dc.date.issued2019
dc.description.abstractWith the focus on the use as leakage detectors, the vapor sensing behavior of conductive polymer composites (CPCs) based on polycarbonate/polystyrene/multi-walled carbon nanotube (PC/PS/MWCNT) blends with different blend ratios was studied as well as their morphological and electrical properties. In the melt mixed blend composites, the MWCNTs are preferentially localized in PC. At the PC/PS ratio of 70/30 wt%, the composites showed a sea-island structure, while for blends containing 40 wt% or 50 wt% PS co-continuous structures were developed resulting in a reduction in the MWCNT percolation threshold. The saturated vapors of the selected solvents have good interactions to PS but different interactions to PC. At 0.75 wt% MWCNT, sea-island CPCs showed high relative resistance change (Rrel) but poor reversibility towards moderate vapors like ethyl acetate and toluene, while CPCs with co-continuous structure exhibited lower Rrel and better reversibility. All CPCs showed poor reversibility towards vapor of the good solvent dichloromethane due to strong interactions between polymers and vapor. In the vapor of the poor solvent cyclohexane, CPCs with higher PS content showed increased Rrel. After extraction of the PS component by cyclohexane, the sensing response was decreased and the Rrel of the co-continuous blend even reached negative values.eng
dc.description.versionpublishedVersioneng
dc.identifier.urihttps://oa.tib.eu/renate/handle/123456789/10077
dc.identifier.urihttp://dx.doi.org/10.34657/9115
dc.language.isoengeng
dc.publisherAmsterdam [u.a.] : Elsevier Scienceeng
dc.relation.doihttps://doi.org/10.1016/j.matdes.2019.107897
dc.relation.essn0264-1275
dc.relation.ispartofseriesMaterials and design 179 (2019)eng
dc.rights.licenseCC BY-NC-ND 4.0 Unportedeng
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/eng
dc.subjectElectrical propertieseng
dc.subjectMelt processingeng
dc.subjectMicrostructural analysiseng
dc.subjectPolymer blendseng
dc.subjectPolymer-matrix composites (PMCs)eng
dc.subjectVapor sensingeng
dc.subject.ddc600eng
dc.subject.ddc690eng
dc.titleOrganic vapor sensing behavior of polycarbonate/polystyrene/multi-walled carbon nanotube blend composites with different microstructureseng
dc.typearticleeng
dc.typeTexteng
dcterms.bibliographicCitation.journalTitleMaterials and designeng
tib.accessRightsopenAccesseng
wgl.contributorIPFeng
wgl.subjectChemieeng
wgl.typeZeitschriftenartikeleng
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